Follicle RX - Hair itself is made of keratin. Progaine uses keratin to rejuvenate and mend damaged factors. Keratin is the best of all proteins for hair proper care. When used in shampoos or conditioners, it enters the shaft strengthening it from within. It helps to mend weak regions of the hair and protects the strands from split ends,fall and breakage. Keratin also creates hair cuticles by binding and reducing frizz caused due to humidity. It brings back the lost natural texture from the hair and restores pH balance, gloss and other natural characteristics.